Determination of the feed additive “Activo” effect on the productivity of lactating sows and young piglets under paratypic factors

Abstract

The research was carried out at the pig farm of LLC Barkom, village Dublyany of Sambirsky district, Lviv region, and PE “Chernyuk” from Hrushvytsia Persha, Rivne district, Rivne region. According to the principle of analogs, two groups of farrowing sows of the PIC genetic company of the large white breed (2–3 farrowing) of 5 animals each were formed – control and trial. The animals were kept in the same house under the same conditions. The trial group received a standard diet similar to the control group, but the feed additive “Activo” was added to the diet in 0.1 kg/t of finished feed. From the fifth day after birth until weaning, newborn piglets of the trial group were fed pre-starter feed, to which 0.2 kg of the feed additive “Active” was added. The environmental parameters in the houses where the animals were kept differed according to the following leading indicators: the air temperature (°C) in the box with manual control of the supply-exhaust ventilation system in 5-, 14-, and 28-day-old piglets were, respectively, by 3; 2 and 4 °C higher compared to the temperature regime provided by the Big Duchman microclimate system; air movement speed (m/s) lower by 21.4; 33.3 and 8.3 %, respectively; carbon dioxide concentration (ppm) higher in 1.9; 1.8 and 2.1 times, respectively; ammonia concentration (mg/m3) higher in 4.5; 6.1 and 6.1 times, respectively; hydrogen sulfide concentration (mg/m3) higher in 1.8; 4 and 5.4 times, respectively. During the trial period, a probable tendency to decrease feed consumption by sows of the control group by 3.4 % (Р < 0.01) was noted at LLC “Barkom”, and at PE “Chernyuk”, it amounted to 6.22 % (Р < 0.001). At the same time, the loss of live weight in sows of the control group amounted to 10 % at the end of the period at LLC Barcom in the control group; namely, the sows of the group (K) lost an average of 23 kg during the trial period. The sows of the group (E) lost 17 kg. At the PE “Chernyuk” pig farm, the loss of live weight in sows at the end of the period in the control group was 25.8 kg, and in the trial group 19.4 kg, (Р < 0.001), that is 24.8% less compared to the control group. At the pig complex of LLC "Barkom," when applying the feed additive “Activo” to lactating sows, an increase in the live weight of piglets in the trial group from birth to the fifth day after birth was noted by 18.3 %, compared to the control group. A significant increase in the live weight of piglets in the trial group was 17.16 % on the 14th day and 13.76 % (Р < 0.001) on the 28th day of life, respectively. When calculating the average daily growth from birth to weaning (28 days of piglets' life), the difference was 18.54 % (Р < 0.001). Piglets born from sows of the control group at the PE “Chernyuk” pig complex that did not consume the trial feed additive had a slightly lower live weight at birth by 9.4 % compared to the trial group. On the fifth day of life, the live weight of the piglets in the trial group was significantly greater than 30.2 % (Р < 0.001). The tendency to increase the piglet's live weight on the 14th and 28th day of life was observed in the trial group by 20.1 % (Р < 0.01) and 14.1 % (Р < 0.001), respectively, in the control group. When calculating the average daily weight gain from birth to weaning (28 days of piglets' life), the difference was 15.15 % (Р < 0.001).